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173710 (2001 QU121)
Classification: Main-belt Asteroid          SPK-ID: 2173710
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080593331717899 6.6144e-08  
a 2.772020080690344 1.9376e-08 au
q 2.472477439232134 1.7612e-07 au
i 6.364879618097445 6.6634e-06 deg
node 350.7925839031122 4.3436e-05 deg
peri 17.73555658078203 5.1593e-05 deg
M 74.87833258542221 2.4057e-05 deg
tp 2459045.871956022321
(2020-Jul-15.37195602)
0.00011297 TDB
period 1685.749287859262
4.62
1.7675e-05
4.839e-08
d
yr
n .2135548877835594 2.2391e-09 deg/d
Q 3.071562722148553 2.147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      7114 days (19.48 yr)  
   first obs. used      2001-08-10  
   last obs. used      2021-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:20:30  

Additional Information
 Earth MOID = 1.47116 au 
 Jupiter MOID = 2.39013 au 
 T_jup = 3.319 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.01   n/a MPCxxxxx  

173710 (2001 QU121)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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